Good material

I built many motorized bikes and that was the one thing I dreaded. Sometimes you get lucky and this sprocket runs true. If not it's difficult to get it to run true, and if you don't it will wipe out your chain very quickly!

This is the best drivetrain product bar none! If you intend to use a two stroke bike motor kit, then you will want this. It allows for concentric and true sprocket mounting and also allows you to adjust the sprocket alignment side to side for perfect chain travel.
I would like to see another hub adapter like this, only done up for disc brake rotor. A adapter to bolt up a disc rotor onto otherwise ordinary bicycle hub would be a very worthy upgrade product. But yeah,,, if you install a bike motor, do yourself a favor and toss that rag joint crap adapter in the garbage. This is better and much safer reliable option! Now only for a disc brake adapter please!!!!

I am using a different sprocket for now and saving the adapter for future use.I want to use steel instead of aluminum.

I think it does the job only issue is next time I should use more some lock-tight

Nice and sturdy

you are the only ones who sell adaptor''s to fit shimano hubs! right on. but an aluminum sprocket? it makes a good jig to drill matching holes in the steel rag joint sprocket, works great. the chain wouldn't even mesh on the aluminum p.o.s

Adapter did it's job fine

sweet! well made!

Must Have These hub adapters are mandatory if you want a dependable motor bike. Very easy to mount and everything is perfect. Yes, you must use threadlock (blue) to keep things locked down. The 7/32” Allen key size is strange but no big deal. Lock this thing down and you are good to go. Worth every penny!

Only way to go Nice machining.....the only way to go if you want to feel comfortable about not dorking up your spokes over time.

Best Part The best part is that this is the best way to do a motorized bike. However, the worst part is that they are 100% BS when they say 2 to 7 day shipping.Order from bikeberry and maybe you get the part maybe you dont. Best if you go to warehouse and will call yourself. Otherwise goodluck getting shvitch from this dump truck of a company. Read reviews on pissedoffconsumer.com

Mandatory, beautiful, but... I put 4 stars to attract attention to the need to place a compound like Thread Lock on the hub surface, as well as the 3 screws. It is probably mentioned somewhere, but this design has an absolute stop point (which it must to work through the spokes and preserve concentricity), and is milled precisely, but China-made hubs may vary in dimension, so the assembly could appear tight, but prematurely loosed and break spokes as mine did. Mated with the beautiful sprocket, this was the first step in my bike's transformation from 'cute' to professional and beautiful. I also have other billet parts from BikeBerry that complement the overall function and appearance.